The 2018 – 2019 school year is currently underway! | Come visit our Open House on March 23. | Welcome to all of our new Semester 2 students! | We are now accepting Early-Bird Summer Camp Applications


OSSLT Day – Wednesday, March 27, 2019 Mar 20, 2019

Dear Parents/Guardians: RE: Ontario Secondary School Literacy Test – Modified School Day Wednesday March 27, 2019 The Education Quality and Accountability Office (EQAO) has scheduled Wednesday March 27, 2019 as the day for students across the province to complete the… more

Youth Leadership Training Day! Mar 6, 2019

IMPORTANT: Youth Leadership Training has been rescheduled to Friday, May 3, 2019 with the registration deadline extended to Friday, April 26, 2019! At J. Addison School, we believe there is a duty to invigorate and motivate our youth more than… more

2-in-1 Summer Camp Early Bird Rates Available Now! Ends March 28. Mar 1, 2019

JAS 2-in-1 Summer Camp is back! Why do we name our Summer Day Camp 2-in-1? Because we combine ACADEMICS and FUN in one amazing program throughout the summer months! We design this program with busy family schedules in mind – you can… more

Independent School National Championship – JAS Tournament Results Feb 25, 2019

On February 23-25, 2019 the J. Addison School Girls’ Basketball Team competed at’s invitation only “Independent School National Championship” in Charlotte, North Carolina, USA. Their first game of the tournament was against IMG Acadamy, one of the Top Athletic… more

Open House: Saturday, Feb. 23, 2019 Feb 19, 2019

This weekend, we will be hosting our Open House for anyone interested in taking a tour and learning about our school! If you have any friends or family interested in finding a private school, this is the perfect time for… more

Semester 1 Media Arts Presentation Feb 8, 2019

Our Media Arts Class has compiled together a video containing their final projects! All scenes were filmed through a smartphone, showcasing the unique personality and creativity of each of our students. ——————————————————————————————————————- Watch the video down below:

2018-2019 Winter Graduate Valedictorians Jan 23, 2019

Congratulations is extended to our Eva S. and Joao A.D.M. for being the Class of 2019 Valedictorians (Winter Graduation Ceremony) Eva S. was born in the beautiful country of Russia and later moved to Canada when she was 5 years… more

We’re going to ICEF Miami! Dec 4, 2018

J. Addison School will be attending the ICEF Workshop in Miami, Florida at the Loews Hotel! It will be a wonderful opportunity for us to increase diversity in our school by meeting with agents from around the world. If you… more

Top Choice Award Nomination: Top Montessori School of 2019 in Markham Nov 5, 2018

We are proud to announce that we have been nominated for Top Montessori School of 2019 in Markham by Top Choice Awards! We would like to thank our diligent staff members for their hard work as well as the parents… more

Congratulations Hennessey Luu-Brown on her Commitment to Brown University!!! Sep 28, 2018

J. Addison School would like to congratulate Hennessey Luu-Brown on her commitment to Brown University (Ivy League)! Last year, Hennessey earned the award for “Best in Prep All-Star Game” and aided our Elite Girls’ Basketball Team to place Top 3rd… more